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具有三态输出的单路 D 型触发器
Number of channels (#) 1
Technology Family LVC
Supply voltage (Min) (V) 1.65
Supply voltage (Max) (V) 5.5
Input type Standard CMOS
Output type 3-State
Clock Frequency (Max) (MHz) 150
IOL (Max) (mA) 32
IOH (Max) (mA) -32
ICC (Max) (uA) 10
Features Balanced outputs, Very high speed (tpd 5-10ns), Over-voltage tolerant inputs, Partial power down (Ioff)
  • Available in the Texas Instruments NanoStar and NanoFree Packages
  • Supports 5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Provides Down Translation to VCC
  • Max tpd of 4 ns at 3.3 V
  • Low Power Consumption, 10-μA Max ICC
  • ±24-mA Output Drive at 3.3 V
  • Ioff Supports Live Insertion, Partial-Power-Down Mode, and Back Drive Protection
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

This single D-type latch is designed for 1.65-V to 5.5-V VCC operation.

The SN74LVC1G374 features a 3-state output designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing buffer registers, input/output (I/O) ports, bidirectional bus drivers, and working registers.

NanoStar? and NanoFree? package technology is a major breakthrough in IC packaging concepts, using the die as the package.

On the positive transition of the clock (CLK) input, the Q output is set to the logic level set up at the data (D) input.

A buffered output-enable (OE) input can be used to place the output in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the output neither loads nor drives the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

OE does not affect the internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.